graph LR idea_031d3291_af83_452d_b359_3c0d4088e9e6["Fall-Planted Hardneck Garlic Overwinters Under Deep Mulch in Subarctic Gardens"] idea_0430f24a_6206_4049_a5a4_44ad52f06d76["Subarctic Gardens Get Only Sixty to One Hundred Twenty Frost-Free Days"] idea_0529f1df_884f_4d1e_8f01_865089c10628["Stomatal Guard Cells"] idea_0f0f7234_be54_4198_bcb7_d919842df2f3["Only Long-Day Onion Varieties Bulb Properly at Subarctic Latitudes"] idea_1838471e_1d44_4643_8c0c_71382f6d882a["High Tunnels Add Enough Heat Units to Ripen Tomatoes in Subarctic Summers"] idea_2435a9db_e0d0_4517_9e6b_6dbaa3388f11["Vapor Pressure Deficit Drives Transpiration and Disease Risk"] idea_391311c2_5857_4dd8_868b_64e8020636f3["Root Cellars Store Subarctic Harvests Near Freezing at High Humidity"] idea_3957380c_fda3_49a9_97b9_31ae83cd0bd5["Choose Vegetable Varieties Whose Days to Maturity Fit Inside the Subarctic Window"] idea_4094284d_f787_489c_bb42_909029ca3f01["Subarctic Summers Accumulate Too Few Growing Degree Days for Most Warm-Season Crops"] idea_45d8b5ad_139b_4d6e_add2_e83e833686fd["Cold Subarctic Soil Stays Below Ten Degrees Into June, Stalling Germination"] idea_46cf701a_09e6_48f7_b332_44dc80217183["Cool-Season and Warm-Season Crops Differ in Their Temperature Optimum"] idea_4bbb5b23_7c76_45df_b017_317d069a2c5e["Daily Light Integral Measures the Total Light a Plant Receives in a Day"] idea_4c0de467_807c_4a1f_990a_e615bbfa3536["Mulch Moderates Soil Temperature and Slows Evaporation"] idea_4e2e7ed3_9316_4219_a58c_e794de0bf393["Long Subarctic Days and Cool Nights Grow Giant Matanuska Valley Cabbages"] idea_507b292a_1c50_4dcc_bc34_29a63e0e3b07["Field Capacity and Wilting Point Bound Plant-Available Soil Water"] idea_594033a8_1739_4957_ad61_64265160c89d["Long Days Raise Daily Water Use in Dry Interior Subarctic Summers"] idea_617fc796_d1c6_4ada_99c8_3e3c0679ce69["Spinach and Radish Bolt Quickly Under Subarctic Midnight Sun Unless Bolt-Resistant"] idea_61ff1065_be28_487d_895b_8252a676a24e["Twenty-Hour Subarctic Summer Days Deliver a High Daily Light Integral"] idea_649d13c2_83cb_462b_84de_556c7b2fafbc["Greenhouse Climate Control"] idea_6829e6c8_3d32_47d6_9c07_d8fa3284c49b["Photoperiod Tells Plants the Season Through Day Length"] idea_6f86aa18_7d97_46b6_849e_e3199d8edeb3["Soil pH & Liming"] idea_70242570_7a63_47c2_8d8e_8a703180541a["Crop Transpiration Turns Plant-Factory Irrigation Water into a Dehumidification Load"] idea_72b89dfd_2c33_400e_b2b2_3b1b89fb3275["Growing Degree Days Accumulate Heat to Predict Crop Development"] idea_742325cf_14c6_4622_8990_9c9cea6ea0b1["Crop Evapotranspiration and the FAO-56 Penman-Monteith Method"] idea_762c1df2_55d7_40ce_a0fa_23e7eda2a432["Indoor-Started Transplants Add Four to Eight Weeks to a Subarctic Season"] idea_7b8eb060_d328_4a9d_80a8_bcbba258e79e["Bolting Is Premature Flowering Triggered by Day Length and Heat"] idea_81aea656_6d0d_45a2_b218_8b893e93c84c["The First Hard Subarctic Freeze Kills Tender Crops but Spares Roots"] idea_9d08f982_a00e_4d3c_b104_c690a19127a5["NPK Nutrient Ratios"] idea_a96f8f89_af8a_4072_932f_8a3ab54bcc9e["Oceanic Summers Pair Long Days with Too Few Heat Units"] idea_c1b25795_4dd1_462a_94d3_16cb528fa714["Next Season's Subarctic Seedlings Start Indoors Under Grow Lights in Late Winter"] idea_c2be7989_e71c_49e8_b6bc_40e5f2adc7d0["Unheated Polytunnels Grow Winter Salads Like Lamb's Lettuce and Claytonia"] idea_ddee44ea_1cfa_4f2f_aaf6_9c122ed533f6["Day-Neutral Strawberries Fruit All Subarctic Summer While June-Bearers Lag"] idea_de89bfe9_8e65_494f_b312_25d26ec36121["Plant Hardiness Zones Rank Winter Cold, Not Summer Heat"] idea_dee465cb_6c77_40eb_9823_e2204a777efd["Organic Matter & Humus"] idea_e82c93fe_bc87_48ac_9815_d77806d70404["Hardy Perennial Berries Survive Subarctic Winters Insulated by Snow Cover"] idea_ed8f19db_0952_4d66_834e_0064dc737df7["Cold Boreal Soils Release Nitrogen Too Slowly for Fast Subarctic Crops"] idea_efb4bde1_c161_4438_a523_ca68df725369["Potatoes Thrive in Subarctic Summers Because Tubers Form Best in Cool Soil"] idea_f34c7535_6011_4d6d_b7bb_add8764733c3["Vernalization and Chill Hours Require Winter Cold Before Flowering"] idea_f9bda79f_637a_43f6_8c83_c6755b4f4624["Fungal Spore Dispersal"] idea_fc58b516_5bb9_44ea_8dd5_405e86e91de0["Unheated High Tunnels Shift a Winter Garden Roughly One Hardiness Zone"] idea_81aea656_6d0d_45a2_b218_8b893e93c84c --> idea_031d3291_af83_452d_b359_3c0d4088e9e6 idea_f34c7535_6011_4d6d_b7bb_add8764733c3 --> idea_031d3291_af83_452d_b359_3c0d4088e9e6 idea_c2be7989_e71c_49e8_b6bc_40e5f2adc7d0 --> idea_649d13c2_83cb_462b_84de_556c7b2fafbc idea_7b8eb060_d328_4a9d_80a8_bcbba258e79e --> idea_617fc796_d1c6_4ada_99c8_3e3c0679ce69 idea_4094284d_f787_489c_bb42_909029ca3f01 --> idea_efb4bde1_c161_4438_a523_ca68df725369 idea_61ff1065_be28_487d_895b_8252a676a24e --> idea_0f0f7234_be54_4198_bcb7_d919842df2f3 idea_762c1df2_55d7_40ce_a0fa_23e7eda2a432 --> idea_4e2e7ed3_9316_4219_a58c_e794de0bf393 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